diff --git a/node/gateway/application/interpreter/reader.go b/node/gateway/application/interpreter/reader.go
index c69c3e350feabcba9739df531417502251936cad..fdb9c1fe3661a68c30332524408db2b023c17351 100644
--- a/node/gateway/application/interpreter/reader.go
+++ b/node/gateway/application/interpreter/reader.go
@@ -49,6 +49,12 @@ func (r *_BodyReader) Read(variables *Variables) string {
 func find(node *reflect.Value, path []string) string {
 
 	if len(path) == 0 {
+		if !node.IsValid(){
+			return ""
+		}
+		if node.IsNil(){
+			return ""
+		}
 		return fmt.Sprint(node.Interface())
 	}